Global Volcanism Program | Image GVP-07771
Volcanic dikes of varying orientations were emplaced into oxidized red scoria in a quarried scoria cone near the village of Agua Blanca. Several generations of thin dikes are visible (note people at the lower left for scale). The larger dike supporting the pinnacle near the center is oriented north-south, parallel to the direction of faults defining the Ipala graben.
Photo by Giuseppina Kysar, 1999 (Smithsonian Institution).